/*
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *  under the License.
 */
package au.com.domlogic.pvc.core.servlet;

import javax.servlet.http.HttpServletRequest;

/**
 * This is a general utility for creating URLs from live deployments.
 * 
 * @author Domenic Figliomeni
 */
public class URLCreator {

    public URLCreator() {
    }

    public String getBaseUrlString(HttpServletRequest request) {
        StringBuffer rqUrl = request.getRequestURL();
        int servletPathIndex = rqUrl.indexOf(request.getServletPath(), rqUrl.indexOf(request.getServerName()));
        String baseUrl = new String(rqUrl);
        if (servletPathIndex != -1) {
            baseUrl = rqUrl.substring(0, servletPathIndex);
        }
        if (!baseUrl.endsWith("/")) {
            baseUrl += "/";
        }
        return baseUrl;
    }
}
